Confirmation of Aqueous Polymer Sorption on Contaminant Barrier Clay Using TGA
Publication: Journal of Materials in Civil Engineering
Volume 18, Issue 2
Abstract
In order to understand the mechanism by which aqueous polymers improve the resistance of clayey barrier soils to stresses, it is important to precisely determine the quantity of polymer that is sorbed onto barrier soil from aqueous solution. Batch sorption test results performed to analyze polyacrylamide (PAM) sorption from aqueous solutions by Na-montmorillonite (Nammt) indicate that viscosity measurement provides higher sorption amounts of PAM ( of Nammt) than thermogravimetric analyzer (TGA) measurement ( of Nammt). Statistical analyses of sorption data for both methods performed at various concentrations ranging from 0.1 to show that in general, the thermogravimetry is more consistent than viscometry. The demerit of viscometry is that the amount of polymer sorbed on solids is estimated indirectly through measurements of polymer solution concentration. Some free polymer molecules may still exist within interparticle pores of the separated solid fraction and can impose higher levels of sorption than actual levels. In the case of TGA, freezing drying of samples, which is a part of the test protocol, extracts pore liquid containing polymer molecules by sublimation. This leaves behind polymer molecules that are actually sorbed on soil particles, thereby producing lesser and more realistic sorption data than viscometry can provide.
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References
Alhashimi, K., and Chaplin, T. K. (1973). “An experimental study of deformation and fracture of soil-cement.” Geotechnique, 23(4), 541–550.
Aranda, P., Galvan, J. C., Casal, B., and Ruiz-Hitzky, E. (1992). “Ionic conductivity in layer silicates controlled by intercalation of macrocyclic and polymeric oxyethylene compounds.” Electrochim. Acta, 37(9), 1573–1577.
Armbrust, D. V. (1999). “Effectiveness of polyacrylamide (PAM) for wind erosion control.” J. Soil Water Conservat., 54(3), 557–559.
Bae, S., and Inyang, H. I. (2002). “Physico-chemical interactions between kaolinite and polyethylene oxide solution.” Proc., 6th Int. Symp. on Environmental Geotechnology and Global Sustainable Development, International Society Environmental Geotechnology, Seoul, Korea, 243–254.
Bates, T. E., and Scott, A. D. (1964). “Changes in exchangeable potassium observed on drying soils after treatment with organic compounds: I. Release.” Soil Sci. Soc. Am. Proc., 28(6), 769–772.
Bendz, D., and Bengtsson, L. (1996). “Evaporation from an active, uncovered landfill.” J. Hydrol., 182(1-4), 143–155.
Ben-Hur, M., Faris, J., Malik, M., and Letey, J. (1989). “Polymers as soil conditioners under consecutive irrigations and rainfall.” Soil Sci. Soc. Am. J., 53(4), 1173–1177.
Bottero, J. Y., Bruant, M., Cases, J. M., Canet, D., and Fiessinger, F. (1988). “Adsorption of nonionic polyacrylamide on sodium montmorillonite: Relation between adsorption, potential, turbidity, enthalpy of adsorption data and 13C-NMR in aqueous solution.” J. Colloid Interface Sci., 124(2), 515–527.
Bullock, M. S., Kemper, W. D., and Nelson, S. D. (1988). “Soil cohesion as affected by freezing, water content, time and tillage.” Soil Sci. Soc. Am. J., 52(3), 770–776.
Daniels, J. L., and Inyang, H. I. (2004). “Contaminant barrier material textural response to interaction with aqueous polymers.” J. Mater. Civ. Eng., 16(3), 265–275.
Fujiyasu, Y., and Fahey, M. (2000). “Experimental study of evaporation from saline tailings.” J. Geotech. Geoenviron. Eng., 126(1), 18–27.
Ghezzehei, T. A., and Or, D. (2001). “Rheological properties of wet soils and clay under steady and oscillatory stresses.” Soil Sci. Soc. Am. J., 65(3), 624–637.
Graveling, G. J., Ragnarsdottir, K. V., Allen, G. C., Eastman, J., Brady, P. V., Balsley, S. D., and Skuse, D. R. (1997). “Controls on polyacrylamide adsorption to quartz, kaolinite, and feldspar.” Geochim. Cosmochim. Acta, 61(17), 3515–3523.
Hallett, P. D., and Newson, T. A. (2001). “A simple fracture mechanics approach for assessing ductile crack growth in soil.” Soil Sci. Soc. Am. J., 65(4), 1083–1088.
Inyang, H. I., and Bae, S. (2004). “Estimation of polyethylene oxide polymer train and loop densities on contaminant barrier materials.” J. Environ. Eng., 130(8), 896–905.
Inyang, H. I., and Bae, S. (2005). “Polyacrylamide sorption opportunity on interlayer and external pore surfaces of contaminant barrier clays.” Chemosphere, 58(1), 19–31.
Konrad, J.-M., and Ayad, R. (1997). “An idealized framework for the analysis of cohesive soils undergoing desiccation.” Can. Geotech. J., 34(4), 477–488.
Konrad, J.-M., and Samson, M. (2000). “Influence of freezing temperature on hydraulic conductivity of silty clay.” J. Geotech. Geoenviron. Eng., 126(2), 180–187.
Krishnamoorti, R., Vaia, R. A., and Giannelis, E. (1996). “Structure and dynamics of polymer-layered silicate nanocomposites.” Chem. Mater., 8(8), 1728–1734.
Kwiatkowski, J., and Whittaker, A. K. (2001). “Molecular motion in nanocomposites of poly(ethylene oxide) and montmorillonite.” J. Polym. Sci., Part B: Polym. Phys., 39(14), 1678–1685.
Laird, D. A. (1997). “Bonding between polyacrylamide and clay mineral surfaces.” Soil Sci., 162(11), 826–832.
Malik, M., and Letey, J. (1991). “Adsorption of polyacrylamide and polysaccharide polymers on soil materials.” Soil Sci. Soc. Am. J., 55(2), 380–383.
Montarges, E., Michot, L., Lhote, F., Fabien, T., and Villieras, F. (1995). “Intercalation of -polyethyleneoxide complexes into montmorillonite clay.” Clays Clay Miner., 43(4), 417–426.
Ritchie, J. T., and Adams, J. E. (1974). “Field measurement of evaporation from soil shrinkage cracks.” Soil Sci. Soc. Am. Proc., 38(1), 131–134.
Schwinka, V., and Mortel, H. (1999). “Physico-chemical properties of illite suspensions after cycles of freezing and thawing.” Clays Clay Miner., 47(6), 718–725.
Suleiman, A. A. and Ritchie, J. T. (2003). “Modeling soil water redistribution during second-stage evaporation.” Soil Sci. Soc. Am. J., 67(2), 377–386.
Sutterer, K. G., Frost, J. D., and Chameau, J.-L. A. (1996). “Polymer impregnation to assist undisturbed sampling of cohesionless soils.” J. Geotech. Eng., 122(3), 209–215.
Theng, B. K. (1970). “Interactions of clay minerals with organic polymers: Some practical applications.” Clays Clay Miner., 18(6), 357–362.
Vercauteren, S., Luyten, J., Leysen, R., and Vansant, E. F. (1996). “Synthesis and characterization of a pillared clay membrane.” J. Membr. Sci., 119(1), 161–168.
Zhang, D., and Shijie, W. (2001). “Mechanism of freeze-thaw action in the process of soil salinization in northeast China.” Environ. Geol., 41(1-2), 96–100.
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© 2006 ASCE.
History
Received: Jul 27, 2005
Accepted: Jul 29, 2005
Published online: Apr 1, 2006
Published in print: Apr 2006
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Note. Associate Editor: Antonio Nanni
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